<template>
  <!-- 头部导航页面 -->
  <header class="head-nav">
    <el-row>
      <el-col :span="6" class='logo-container'>
        <img src="../assets/logo.jpg" class='logo' alt="">
        <span class='title'>先辈在线后台管理系统</span>
      </el-col>
      <el-col :span='6' class="user">
        <div class="userinfo">
          <img :src="user.avatar" class='avatar' alt="">
          <div class='welcome'>
            <p class='name comename'>欢迎</p>
            <p class='name avatarname'>{{user.name}}</p>
          </div>
          <span class='username'>
            <el-dropdown
              trigger="click"
              @command='setDialogInfo'
            >
              <span class="el-dropdown-link">
                <i class="el-icon-caret-bottom el-icon--right"></i>
              </span>
              <el-dropdown-menu slot="dropdown">
                <el-dropdown-item command='info'>个人信息</el-dropdown-item>
                <el-dropdown-item  command='logout'>退出</el-dropdown-item>
              </el-dropdown-menu>
            </el-dropdown>
          </span>
        </div>
      </el-col>
    </el-row>
  </header>
</template>
<script>
export default {
   name: "Headers",
   computed: {
     user() {
       return this.$store.getters.user
     }
   },
   methods: {
    setDialogInfo(cmdItem) {
      switch (cmdItem) {
        case "info":
          this.showInfoList();
          break;
        case "logout":
          this.logout();
          break;
      }
    },
    showInfoList() {
      this.$router.push('/infoshow')
    },
    logout() {
      // 清除token
      localStorage.removeItem('eleToken')

      // 设置vuex store
      this.$store.dispatch("clearCurrentState");

      // 跳转
      this.$router.push('/login')
    }
  }
}
</script>
<style scoped>
.head-nav {
  width: 100%;
  height: 60px;
  min-width: 600px;
  padding: 5px;
  background: #324057;
  color: #fff;
  border-bottom: 1px solid #1f2d3d;
}
.logo-container {
  line-height: 60px;
  min-width: 400px;
}
.logo {
  height: 50px;
  width: 50px;
  margin-right: 5px;
  vertical-align: middle;
  display: inline-block;
}
.title {
  vertical-align: middle;
  font-size: 22px;
  font-family: "Microsoft YaHei";
  letter-spacing: 3px;
}
.user {
  line-height: 60px;
  text-align: right;
  float: right;
  padding-right: 10px;
}
.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  vertical-align: middle;
  display: inline-block;
}
.welcome {
  display: inline-block;
  width: auto;
  vertical-align: middle;
  padding: 0 5px;
}
.name {
  line-height: 20px;
  text-align: center;
  font-size: 14px;
}
.comename {
  font-size: 12px;
}
.avatarname {
  color: #409eff;
  font-weight: bolder;
}
.username {
  cursor: pointer;
  margin-right: 5px;
}
.el-dropdown {
  color: #fff;
}

</style>
